three bell rings at a time interval of 25,40 and 60 minutes respective

1.	three bell rings at a time interval of 25,40 and 60 minutes respectively .if they have rung together now , after how long will they next ring together
Answer» Answer: Given => *Three* *bells* *ring on time* *interval* of: 25 minutes. , 40 minutes. , 60 minutes. Ones these three bells rung together, After time interval of X they again RING together. So, X = ? The LCM of these given numbers will be value of X. By prime factorisation method Prime FACTORS of GIVEN numbers: 25 = 5×5. 40= 2×2×2×5 60=2×2×3×5. So , LCM=> 2×2×2×3×5×5= 600 minutes. 600 minutes = 10 HRS. So , after 10 hrs all bells rin**g together.

three bell rings at a time interval of 25,40 and 60 minutes respectively .if they have rung together now , after how long will they next ring together

Answer»

Answer:

Given =>

Three bells ring on time interval of:

25 minutes. , 40 minutes. , 60 minutes.

Ones these three bells rung together, After time interval of X they again RING together.

So, X = ?

The LCM of these given numbers will be value of X.

By prime factorisation method

Prime FACTORS of GIVEN numbers:

25 = 5×5.

40= 2×2×2×5

60=2×2×3×5.

So , LCM=>

2×2×2×3×5×5= 600 minutes.

600 minutes = 10 HRS.

So , after 10 hrs all bells ring together.

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